Path: Home > GB > Page40 > GB 26537-2011 Home > Standard_List > GB > Page40 > GB 26537-2011 US$449.00 · In stock
Delivery: <= 4 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB 26537-2011: [GB/T 26537-2011] Steel fiber reinforced concrete manhole cover
Status: Valid
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB 26537-2011 | English | 449 |
Add to Cart
|
4 days [Need to translate]
|
[GB/T 26537-2011] Steel fiber reinforced concrete manhole cover
| Valid |
GB 26537-2011
|
PDF similar to GB 26537-2011
Basic data | Standard ID | GB 26537-2011 (GB26537-2011) | | Description (Translated English) | [GB/T 26537-2011] Steel fiber reinforced concrete manhole cover | | Sector / Industry | National Standard | | Classification of Chinese Standard | Q14 | | Classification of International Standard | 91.100.40 | | Word Count Estimation | 17,136 | | Date of Issue | 2011-06-16 | | Date of Implementation | 2012-04-01 | | Quoted Standard | GB 175; GB/T 700; GB/T 1348; GB 1499.2; GB 8076; GB 9439; GB 13788; GB/T 14684; GB/T 14685; GB 50204; GBJ 82; JGJ 63; JG/T 3064 | | Regulation (derived from) | Announcement of Newly Approved National Standards No. 9 of 2011 | | Issuing agency(ies) | General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China | | Summary | This Chinese standard specifies the steel fiber reinforced concrete inspection covers terms and definitions, product classification, grading and marking, raw materials and construction requirements, technical requirements, test methods, inspection rules, marks, product certification, storage and transport. This standard applies to the airport apron, ports, roads, highways, motor vehicles may be driven or parked in the underground facility inspection wells with steel fiber reinforced concrete manhole covers, also applies to the green belt and other non- motorized vehicles or parked channel, Going manhole steel fibers | GB 26537-2011: [GB/T 26537-2011] Steel fiber reinforced concrete manhole cover---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Steel fiber reinforced concrete manhole cover
ICS 91.100.40
Q14
National Standards of People's Republic of China
Steel fiber reinforced concrete inspection covers
Issued on. 2011-06-16
2012-04-01 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Table of Contents
Introduction Ⅲ
1 Scope 1
2 Normative references 1
3 Terms and definitions
4 product classification, grading and marking 2
5 4 raw materials and construction requirements
6 Technical requirements 4
Test Method 6 7
8 7 inspection rules
9 logo, product certification 9
10 Storage and transportation 9
Test equipment and test methods in Appendix A (normative) circular, rectangular steel fiber reinforced concrete inspection covers bearing capacity 10
Test device Annex B (informative) multi-block combination of rectangular steel fiber reinforced concrete covers (trench cover) Carrying Capacity
And test methods 12
Foreword
6.1.2,6.3,6.5 this standard are mandatory, the rest are recommended.
Appendix A of this standard is a normative appendix, Appendix B is an informative annex.
The standard proposed by China Building Materials Federation.
This standard by the National Standardization Technical Committee cement products (SAC/TC197) centralized.
This standard is drafted by. Suzhou Institute of concrete cement products, Jurong City Kodak Technology Development Co., Ltd.
Participated in the drafting of this standard. Suzhou City Xingbang Chemical Building Material Co., Ltd., Suzhou City, Guang Wei Special Cement Co., Ltd., Beijing
Municipal Engineering Research Institute, Wuxi Xin Lok Communications Equipment Co., Ltd., Wuxi City, east Xin Concrete Products Co., Ltd., Jiangxi Dongrun Industry Co.,
Jiangsu pigeon Communications Equipment Co., Ltd. Weifang is surprising Pipe Co., Nanjing Heng Kun precast concrete products Co., Ltd., Wuhan Belden Wells
Cover Manufacturing Co., Ltd. Yuyao City, Shing building components, Changxing, Zhejiang Chang LSC fiber concrete products plant, Hefei Green Engineering
Material Co., Ltd., Yichang, Hubei Wulong red industry Cement Co., Ltd., Suzhou City Shenzhou pipeline Material Co., Ltd., Suzhou City, Xu Jiang plastic
Plant, Sheng Road, Xiamen Building Materials Co., Ltd., Kunming Shun Hong cement pipe Co., Ltd.
The main drafters of this standard. Xi Feida, Chen Fang, Maorong Liang, Li roots, Wang Guan Ming Xie busy, Wangrong Ming, Wan Benjamin, blond Fu,
Pingjian Peng, Sun Xiaoliang, Yanlu Jun, Zhou root giant, Wang Min Chang, Wang Guoqing, Chen Lianghong, Chenrong Kun, Pan Ruoxuan, Bianxiang Chun, Wangze Sheng, Xie Biao,
Commissioner Tong Jo, Renqing Wen.
Steel fiber reinforced concrete inspection covers
1 Scope
This standard specifies the terms and definitions of steel fiber reinforced concrete inspection covers, product classification, grading and marking, raw materials and construction requirements, technical
Operation requirements, test methods, inspection rules, marking, product certification, storage and transportation.
This standard applies to the apron of the airport, ports, roads, highways, or driving a motor vehicle may be parked underground facilities Manhole
Steel fiber reinforced concrete inspection covers use, also applies to non-motorized vehicle parked channel or green belts, steel fiber site inspection of wells
Concrete inspection covers.
2 Normative references
The following documents contain provisions which, through reference in this standard and become the standard terms. For dated references, subsequent
Amendments (not including errata content) or revisions do not apply to this standard, however, encourage the parties to the agreement are based on research
Whether the latest versions of these documents. For undated reference documents, the latest versions apply to this standard.
GB 175 Common Portland Cement
GB/T 700 carbon structural steel
GB/T 1348 Ductile Iron
GB 1499.2 reinforced concrete Steel PART II. hot rolled ribbed bar
GB 8076 concrete admixture
GB 9439 Gray Iron Castings
GB 13788 cold rolled ribbed bar
GB/T 14684 construction sand
GB/T 14685 construction with gravel, crushed stone
GB 50204 Construction Quality Acceptance of Concrete Structure Engineering
GB J82 ordinary concrete long-term performance and durability test methods
JGJ63 concrete water standards
JG/T 3064 steel fiber reinforced concrete
3 Terms and Definitions
The following terms and definitions apply to this standard.
3.1
Manhole manhole
At regular intervals in the underground pipeline construction shaft position. Primarily for connection, repair, maintenance, installation of pipelines and equipment. Manhole package
Including wellbore, well base, and covers three parts.
3.2
Well seat frameforcover
Check fixed to the wellhead portion for mounting covers. Can be made of steel fiber reinforced concrete, it can also be cast iron or steel.
3.3
Steel fiber reinforced concrete inspection covers steelfiberreinforcedmanholecover
Steel fiber reinforced concrete inspection covers are equipped with a skeleton of steel fiber reinforced concrete pouring molding inspection covers. Acronym wells, located in Unit
Zha top wellhead unfixed portion, whose function is to check the wellhead closed, can be opened when required. Wells and wells with the seat shown in Figure 1.
3.4
Embedding depth inlaiddepth
Well seat height seat bearing surface to the top surface of the well. h1 values shown in Figure 1.
1 --- covers;
2 --- steel hoop;
3 --- well base.
Block 1 covers the well schematic diagram
3.5
Aperture widthofoperture
The sum of the base and covers the gap between the wells, slit width a, a = a1 a2. a1, a2 values shown in Figure 1.
3.6
Covers shelved wide placewidthforcover
Covers parts resting on the bearing, B values shown in Figure 1.
3.7
Well hub support wide supportwidthforframe
Supporting seat covers wells plane, as shown in Figure 1 C value.
3.8
Inspection covers clear width (also known as nominal width) nominalwidthofcover
The minimum size of the orifice of the well base, i.e. the wellhead sizes, D0 values shown in Figure 1.
3.9
Covers shelve height coverdepthatplacedrart
Covers parts of the resting face height B, shown in Figure 1 is H.
3.10
Steel hoop steelring
With steel or cast steel production, outsourcing covers around, reinforced material used. Its vertical height equal to the height of the covers aside, generally taper
1.10, the shape of circular shape, or a truncated pyramid shape as shown in FIG.
3.11
Flexible and rigid contact flexiblecontactandrigidcentact
In the resting surface or well base covers the supporting surface is provided rubber or other flexible ring apron, said flexible contact; seat covers rest directly supported well
Said rigid contact surface.
4 product classification, grading and marking
4.1 Classification
Manhole cover according to the planar shape, can be divided into circular, rectangular two kinds. Press covers cross-sectional shape, it can be divided into flat bottom surface of the plate covers, plus the bottom surface
Rib ribbed covers and bottom of pan-shaped pan shaped covers. Covers by combination into a single block and multi-block combination covers covers (more
Door covers or trench cover), as shown in FIG.
Book Book Book
4.2 rating
Press covers carrying capacity is divided A15, B125, C250, D400, E600 and F900 six. The use of premises as follows.
A15 grade covers for green belt and motor vehicles can not travel and parking area.
B125 class covers, for urban non-motorized vehicles, sidewalks, roads and parking lots within residential areas.
C250 grade covers, generally for urban roads, highways and parking lots.
D400 class covers, for the city's main roads, national highways, expressways and highway areas.
E600 grade covers for special regional ports, terminals and cargo terminals.
F900 grade covers for the airport apron, on both sides of the runway or special defense projects.
4.3 mark
4.3.1 Product Marking
Press covers bearer level, covers the outer diameter (or side length), the standard sequence numbers are marked.
4.3.2 tag example
5 raw materials and construction requirements
5.1 raw materials
5.1.1 The cement shall comply with the provisions of GB 175.
5.1.2 should adopt steel cold-rolled ribbed steel and hot-rolled ribbed steel bars, and its quality should be consistent with the provisions of GB 13788 and GB 1499.2.
5.1.3 should adopt the Q235 steel plate hoop, its quality should be consistent with GB/T 700 provisions. Such as castings production, should adopt or QT400
HT200 material, the material should be consistent with GB/T 1348 and GB 9439 regulations.
5.1.4 Coarse aggregate should adopt 5mm ~ 16mm continuous graded gravel, clay content less than 1%, other properties should be consistent with GB/T 14685 of
Provisions.
5.1.5 fine aggregate should adopt 1.8mm ~ 2.2mm coarse sand, clay content less than 2%, other properties should be consistent with GB/T 14684 of
Provisions.
5.1.6 admixture shall comply with the provisions of GB 8076.
5.1.7 Mixing water should comply with the provisions of JGJ63.
5.2 construction requirements
5.2.1 size steel blanking length to allow deviation 0mm ~ 2mm, the surface without oil.
5.2.2 steel hoop outside diameter (or side length) allows deviation of ± 2mm, the height allowable deviation is 0mm ~ 2mm.
5.2.3 The steel skeleton of reinforcement spacing to allow deviation of ± 5mm.
5.2.4 Weld requirements. welding, steel pads, steel hoop and welding quality steel skeleton steel hoop shall comply with the provisions of GB 50204.
5.2.5 concrete protective layer thickness of not less than 12mm.
6 Technical Requirements
6.1 appearance quality
6.1.1 covers the surface should be smooth, smooth, crack-free, non-slip pattern, patterns and markings should be clear.
Requirements 6.1.2 covers the groove depth should be non-slip surface pattern or design, non-slip pattern or patterns as. A15, B125 and C250 grade covers
≥2mm; D400, E600 and F900 class covers ≥3mm. And it covers an area more than the entire area of the groove section should not be less than 10%.
6.2 size deviation
6.2.1 Single block covers geometry and tolerances are shown in Table 1.
Table 1 covers a single block of geometry and tolerances in millimeters
grade
Wellhead size (D0) covers the outer diameter or side length (D or L) covers shelve height (H) covers shelve wide (B)
standard value
Standard value
Tolerance
Standard value
Tolerance
Standard value
Tolerance
A15
B125
C250
D400
E600
F900
-3
Plate 30
Plate 40
Plate 40
Ribbed 40
Plate 50
Ribbed 40
Plate 50
Ribbed 40
Plate 50
Ribbed 50
Plate 60
Ribbed 50
Plate 60
Ribbed 50
Plate 60
Ribbed 60
Plate 70
Ribbed 60
Plate 70
Ribbed 60
Plate 70
Ribbed 70
Ribbed 70
Ribbed 70
Ribbed 80
Ribbed 80
Ribbed 80
-2
-2
Note 1. In accordance with the agreement of both supply and demand, but also can produce other sizes of covers.
Note 2. If the use of cast iron and steel bearings, then set aside covers wide (B), can be set according to the support bearing wide.
6.2.2 monolithic seat covers and well between the slit width a = (a1 a2) ≤6mm; multi-block covers when used in combination, covers the seam between the average width should not
To 3mm.
6.3 compressive strength of steel fiber reinforced concrete
Covers steel fiber reinforced concrete provisions shall JG/T 3064 preparation and molding. For F900 and E600 grade level covers its anti-cube
Pressure strength should not be less than C80; on the D400 and C250 grade level covers its cube compressive strength should not be less than C50; B125 and A15 grade level well
Cover its cube compressive strength should not be less than C40. Compressive strength of steel fiber reinforced concrete should be tested once a week.
6.4 steel hoop
F900, E600, D400, C250 and B125 grade covers shall be provided with steel hoop, hoop steel thickness not less than the value specified in Table 2, and the steel hoop
It should be an effective anti-rust treatment. A15 grade steel hoop covers not to set up, but should be set within a steel hoop φ10mm.
Table 2 steel hoop minimum thickness in millimeters
Level Minimum thickness
B125 3
C250 4
D400 5
E600, F900 6
NOTE. C250, D400 grade steel hoop set inside of the steel hoop, the hoop thickness of steel sheet thickness is not so limited but steel hoop thickness not less than 3mm.
6.5 carrying capacity
Carrying capacity of steel fiber reinforced concrete inspection covers shall be in accordance with Table 3.
Table 3 steel fiber reinforced concrete inspection covers the carrying capacity of the unit is kN
Inspection covers cracking load failure load rating
A15 ≥7.5 ≥15
B125 ≥62.5 ≥125
C250 ≥125 ≥250
D400 ≥200 ≥400
E600 ≥300 ≥600
F900 ≥450 ≥900
Notes. cracking load refers to the surface of the crack width when loading up the covers when the test load value of 0.2mm.
6.6 frost resistance
Covers in cold areas should be used for frost resistance test, and shall comply with the relevant norms.
7 Test methods
7.1 Test equipment and measuring instruments are shown in Table 4.
Table 4 test equipment and measuring instruments
No. Name Range Range Accuracy minimum scale value
Steel tape 0m ~ 1m Ⅱ grade 1mm
Steel ruler 0mm ~ 300mm grade Ⅰ 1mm
Squares 0mm ~ 150mm Ⅱ grade 1mm
JC-10 reading microscope 0mm ~ 8mm ± 0.01 0.1mm
Carrying capacity of the test device dynamometer 0kN ~ 1000kN 2% 1kN
Feeler 0.01mm ~ 5mm ± 0.03
7.2 Visual inspection
It has damaged and cracks with a visual inspection covers the surface, whether smooth, flat, non-slip pattern, patterns and markings are clear.
7.3 Measure
7.3.1 outside diameter D
Covers on the same plane as measured by the center and the two mutually perpendicular outer diameter values, averaged, is accurate to 1mm.
7.3.2 side length L
Steel tape measure the length of each side of the square covers, taking the average, accurate to 1mm.
7.3.3 covers shelve height H
In the surrounding covers about four equal portions at four measuring height hold, averaging, accurate to 1mm.
7.3.4 covers shelving width B
Visually covers the contact surface is uniform across the width, smooth steel ruler in width measured at the maximum and minimum width of two resting face
Value, averaging, accurate to 1mm.
7.3.5 steel hoop thickness
Steel hoop surrounding the well at about four equal portions, measuring four steel hoop thickness values, averaged, accurate to 1mm.
The average of the measurement values of the measurement results.
Standard Test Method for Compressive Strength of Concrete 7.4 Steel Fiber
Steel fiber reinforced concrete compressive strength test method shall be specified JG/T 3064 will be.
7.5 carrying capacity test
7.5.1 covers the use of a single test carried out in accordance with Appendix A.
7.5.2 multi-block rectangle covers the combination of (trench cover) can be selected a carrying capacity test; if more than two grooves associated cover
After the plate, it is desirable combination of two associated trench cover, simultaneously carrying capacity test in accordance with Appendix B into line test.
7.6 frost resistance test
GB J82 performed according to relevant regulations.
8 Inspection Rules
8.1 Inspection classification
Inspection is divided into the factory inspection and type testing.
8.2 factory inspection
Factory inspection should be carried out before the product is shipped.
8.2.1 Test items
Including steel fiber concrete compressive strength, the appearance of quality, size deviation and cracking load test.
8.2.2 Batch and sampling
8.2.2.1 appearance quality, size deviation
With the same type and the same production level of 500 (sets) covers (or 500 sets of covers) as a group, but within three months, less than 500 production
(Sets) when the covers are still a number of randomly selected 10 (sets) covers for visual inspection of quality and size deviation.
8.2.2.2 cracking load
Appearance quality and size deviation of inspection covers, the randomly selected two (sets) covers the fracture load test.
8.2.2.3 compressive strength of steel fiber reinforced concrete
Steel fiber concrete compressive strength and bulk sampling in accordance with relevant provisions of JG/T 3064's.
8.2.3 decision rule
8.2.3.1 appearance quality and size of deviation
If the pump 10 (sets) covers the sample, the sample does not meet the requirements of 6.1, 6.2, no more than two (sets), covers the appearance of this batch quality
The amount and size of the deviation is qualified; otherwise, this batch covers the appearance of quality and size deviation is unacceptable.
8.2.3.2 cracking load test
If pumped two (sets of) cracking load test results covers all satisfy the provisions of 6.5, then this batch of qualified covers cracking load; if
When two (sets) covers do not comply with the provisions of 6.5, then this batch of covers cracking load failed. If a (set) does not comply with the provisions of 6.5, the
When should the original extracted 10 (sets) and then extracted in two (sets) covers re-examination, re-examination results are consistent with the provisions of 6.5, then this batch of covers
Cracking load qualified; if there is still a (set) covers do not meet the provisions of 6.5, then this batch of covers cracking load failed.
8.2.3.3 compressive strength of steel fiber reinforced concrete
Steel fiber concrete compressive strength of 6.3 in line with the requirements of this batch covers the compressive strength of steel fiber reinforced concrete for qualified. do not meet 6.3
The required covers this batch of steel fiber reinforced concrete compressive strength failed.
8.2.3.4 overall judgment
When covers the appearance of quality, size deviation, steel fiber concrete compressive strength and fracture load all qualified, then this batch of covers qualified.
If the size deviation covers, steel fiber concrete compressive strength and fracture load there is a failure, then this batch of covers to be ineligible. If only
Unqualified appearance quality, it may be repaired, and the batch covers examined every passer is judged as qualified products.
8.3 Type inspection
8.3.1 Test conditions
When one of the following conditions, type of inspection should be carried out.
a) normal production year;
b) When the product structure, raw materials, production processes have a greater change;
c) shut down more than six months to restore production;
d) The factory test results with the previous type inspection when there is a big difference.
8.3.2 Test items
Section 6 includes all the technical requirements.
8.3.3 Batch and sampling
8.3.3.1 appearance quality, size deviation
Not less than 100 (sets) of the same type, the same level of wells in randomly selected 10 (sets) covers for visual quality and size deviation
test.
8.3.3.2 carrying capacity test
Appearance quality and size deviation of inspection covers, the randomly selected two (sets) covers were carrying capacity test.
8.3.3.3 compressive strength of steel fiber reinforced concrete
Steel fiber concrete compressive strength and bulk sampling in accordance with relevant provisions of JG/T 3064's.
8.3.3.4 steel hoop
Steel hoop thickness examination conducted in two (sets of) the bearer capability covers damage inspection.
8.3.4 decision rule
8.3.4.1 appearance quality and size of deviation
If the pump 10 (sets) covers the sample, the sample does not meet the requirements of 6.1, 6.2, no more than two (sets), covers the appearance of this batch quality
The amount and size of the deviation is qualified; otherwise, this batch covers the appearance of quality and size deviation is unacceptable.
8.3.4.2 Carrying Capacity
If pumped two (sets of) carrying capacity covers all test results in line with the provisions of 6.5, then this batch of covers bearing capacity qualified; if
Then this batch of covers bearing capacity failure when two (sets) covers do not comply with the provisions of 6.5. If a (set) does not comply with the provisions of 6.5, the
When should the original extracted 10 (sets) and then extracted in two (sets) covers re-examination, re-examination results are consistent with the provisions of 6.5, then this batch of covers
Carrying capacity qualified; if there is still a (set) covers do not meet the provisions of 6.5, then this batch of covers bearing capacity failure.
8.3.4.3 compressive strength of steel fiber reinforced concrete
Steel fiber concrete compressive strength of 6.3 in line with the requirements of this batch covers the compressive strength of steel fiber reinforced concrete for qualified. does not meet standards
6.3 covers the requirements of the penalty batch of steel fiber reinforced concrete compressive strength failed.
8.3.4.4 steel hoop
If pumped two (sets) covers all steel hoop thickness of the test results in line with the provisions of 6.4, then this batch covers steel hoop thickness qualified; if
When two (sets) covers not comply with the provisions of the standard 6.4, then this batch covers steel hoop thickness to be ineligible. If a (set of) non-compliant
6.4 provisions, should be in the original extraction 10 (sets) and then extracted in two (sets) covers re-examination, re-examination results are consistent with the provisions of the standard 6.4
, Then this batch covers steel hoop thickness is qualified; if there is still a (set) covers do not meet the provisions of 6.5, then this batch covers steel hoop thickness
Failed.
8.3.5 overall judgment
When covers the appearance of quality, size deviation, the thickness of the steel hoop, when the steel fiber reinforced concrete compressive strength and load carrying capacity are qualified, then this batch of wells
Cover qualified. When the covers size deviation, the thickness of the steel hoop, steel fiber concrete compressive strength and load carrying capacity, there is a failure, then this batch
It covers ineligible.
9 logo, product certification
9.1 mark
Permanent signs 9.1.1 covers the surface of the contents
a) covers a special symbol for "dirty", "Rain", "power" and so on;
b) the manufacturer's name or trademark;
c) covers level "F900", "E600", "D400", "C250", "B125" and "A15".
9.1.2 covers the bottom surface content
Year of production.
9.2 product certification
Product certification should include the following.
a) product certification number, product classification, grade mark;
b) the manufacturer's name, date of manufacture;
c) steel fiber reinforced concrete compressive strength;
d) the carrying capacity of the product test results;
e) inspectors signature (on behalf of the available code inspector).
Storage and transport 10
10.1 Storage
Products and covers different levels should be stacked separately.
10.2 Transportation
Product loading and handling process is strictly prohibited throw.
Appendix A
(Normative)
Circular, rectangular test equipment and test methods for steel fiber reinforced concrete inspection covers bearing capacity
A.1 circular, rectangular carrying capacity of steel fiber reinforced concrete inspection covers inspection carried out on a dedicated carrying capacity of the test apparatus.
A.2 test device from the rack, rubber gaskets, rigid pads, pressing device, dynamometer, etc., see Figure A.1.
1 --- observation hole;
2 --- Rack;
3 --- well base;
4 --- steel hoop;
5 --- covers;
6 --- sensor;
7 --- jack;
8 --- rigid bearer;
. 9 --- rubber pads.
Figure A.1 detecting means test mechanism Schematic
A.2.1 rigid pad diameter 356mm, thickness is greater than or equal to 40mm, the upper and lower surface of the flat circular plate.
A.2.2 rubber gasket between the rigid pads and covers, the plane size should be the same as the rigid pad thickness of 6mm ~ 10mm, Juju
It has a certain flexibility.
A.2.3 well base covers the supporting surface should match the contact surface, and flat.
A.2.4 Capacity Test equipment from the rack, and pressurizing means composed dynamometer, the dynamometer shall not exceed the minimum score 1kN, and test load
It should be 30% to 80% of its range. Face its size must be greater than the maximum outer edge of the seat covers supporting shaft size.
A.3 test load value as defined in Table 3.
A.4 Test Procedure
A.4.1 Figure A.1 the specimen placed in the test apparatus, adjust the position of the rigid pad, its center coincides with the geometric center of the covers.
A.4.2 fracture load test
At a rate of 1kN/s ~ 5kN/s loading, crack load value by grading loading, each loading level of 20% the value of the fracture load, constant
1min, gradual loading to fracture load values specified in Table 3. Measurement of crack width when loaded into the cr...
Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB 26537-2011_English be delivered?Answer: Upon your order, we will start to translate GB 26537-2011_English as soon as possible, and keep you informed of the progress. The lead time is typically 2 ~ 4 working days. The lengthier the document the longer the lead time. Question 2: Can I share the purchased PDF of GB 26537-2011_English with my colleagues?Answer: Yes. The purchased PDF of GB 26537-2011_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet. Question 3: Does the price include tax/VAT?Answer: Yes. Our tax invoice, downloaded/delivered in 9 seconds, includes all tax/VAT and complies with 100+ countries' tax regulations (tax exempted in 100+ countries) -- See Avoidance of Double Taxation Agreements (DTAs): List of DTAs signed between Singapore and 100+ countriesQuestion 4: Do you accept my currency other than USD?Answer: Yes. If you need your currency to be printed on the invoice, please write an email to [email protected]. In 2 working-hours, we will create a special link for you to pay in any currencies. Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay.
|